Another very interesting observation was a SINGING Song Sparrow. Though this is a common sound from about the middle of March on, February 19 is a very early date.

Song SparrowSong Sparrow

Other birds that I was able to photograph:

Downy Woodpecker (female)

It is risky identifying Lesser and Greater Scaup in the field and is mainly a question of the location of the peak of the head. Further forward giving a rounded look on Greater and further back on Lesser.